<!doctype html>
<html>
<head>
<style>
    * {
        background-color: blue;
        color: black;
        border: 5px solid black;
    }
    html, body, p {
        background-color: white;
        color: black;
    }
    target {
        background-color: green;
    }

    /* The only dynamic selector that matches is "*". Every rules except the first one (* selector) should override the style defined here.
       Background-color is defined by the two tag selectors above.
       Color is defined below by the star rule. It has the same specificity but a higher position.
       Border overrides the black border defined in the first rule. */
    :matches(#foo, .bar, target.notthere, *, foo>bar) {
        background-color: red;
        color: blue;
        border: none;
    }
    * {
        color: white;
    }
</style>
</head>
<body>
    <p>This test the specificity of :matches() with a dynamic specificity of zero. The test passes if the text "target" is displayed white on green background.</p>
    <target>Target</target>
</body>
</html>